US Navy 1960’S Wireline FSK MD-674PG Modem Power Supply
MD-674, also known as Wireline FSK, is a very old United States Military FSK Modem from the 1960’s. Uses 85 Hz FSK shift. Speeds of 50 Bd, 75 Bd, 100 Bd, and 150 Bd have been logged. We provide work with these communities to provide dental education and services, groceries, and Christmas toys.
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